Tom has \(\$10\) that he wants to use to buy pens and pencils. However, he does not want to buy more pens than pencils. A pen costs \(\$3\), and a pencil costs \(\$1\). Which graph represents this scenario? (Here, \(x\) represents the number of pens and \(y\) the number of pencils.)



SpaceModo  Jan 19, 2018

Let x  be the number of pens  and let  y be the number of pencils


And we have these constraints


x ≤ y


3x +  1y ≤  10


The third graph is correct  [ both lines will be solid because of the  " ≤ "  ]


See  here  :  https://www.desmos.com/calculator/pd7tbftmpj



cool cool cool

CPhill  Jan 19, 2018

Hey, thanks! smiley

SpaceModo  Jan 19, 2018

18 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.